Process of reproducing pictures.



one entrant t v HENRY rnrnnsor nanwannnwannsnv.

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T (ZZZ ulroni. tic nay concern Be it known that I, H NRY Pn'rnns, a subject of the-German Empire, and resident of Rahway, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Processes of Reproducing Pictures, of which the following is a specification.

My invention relates to certain improvements in the process of making reproductions of pictures and more particularly the reproduction of oil paintings.

The main object of my invention ,is to more etlcotivelv secure a copy which, in appearance, will simulate an original, not only in regard to the colors, lines and shading of the latter, but also in regard to such surface irregularities as the structure of the canvas, the varying thicknesses of paint, brush marks, finger prints, etc.

In carrying out my improved process I first make or secure a photographic reproduction of the painting in its true and nat ural colors on the surface of a readily embossable material, such as paper, and by the use of the ordinary tri-color or founcolor printing process. This ordinarily includes the making of separate photographic plates with different color screens interposed and the printing of separate superposed impressions with difi erent colored inks from printing plates made from the corresponding photographic plates. This photographic reproduction in the natural colors may be made. by any well-known process now employed, or I may purchase colored prints already made by others. These prints may be the same size as the original painting or may be larger or smaller. 1 next make an intaglio to he used as a die; This I may do by supporting the painting: in a horizontal position with a suitable frame around it and pour on to the painting a solution which will not injure or in any wise effect the structure. color or other characteristics of the painting, but which upon evaporation of the solution will leave a matrix, die or intaglio, the under surface of which will conform in the minutest detail to the surface irregularities of the painting. The compound which I preferably employ is made up of ten parts of cellulose acetate, eigfhty parts of tetrachlorethane, and five parts of dichlorhydrin, the parts being dellhe cellulose acetate termined by Weight. which is employed is preferably such as is Specificationof Letters Patent. Pgitqgptcgfl p ne 22 19115,.

Application filed December 9, 1913. I Serial No. 805% soluble in acetone. Theexact proportions of theseingredients is not essential and other ingredients may be employed assubstitutes for those specified, for instancecellulose nitrate or amyl acetate might be employedin place'of the cellulose acetate, although the latter is preferable by reason of its relative non-combustiblecharacter, and other softening agents than dichlorhydrin might be employed.-.: Upon the evaporation of the solvents, hard-solid'filmIor plate will remain which may bereadily removed from the painting withont in anyway injuring the latter. Under ordinary conditions 48 hours is sufhcient to effect the complete and desired evaporation, although this time might be shortened by a slight increase in temperature or areductionin pressure. The time will varywiththe thickness ofthe layer of solution on the painting. T his film or plate will conform, on its 'unders'urface, to the surface of itheipa'i'nting andawill be flat on its uppersur'facei JYhen .thesolvent has evaporated the residue will be sufficiently hard to itself constitute the die. My improved process can be carried out in this way only when the colored print is a fullsized reproduction of the original painting, and when the originalpainting is available for the making of thematrixor die.

I. may carry out my improved process by making or securing a colored print as above described which may be either larger, smaller or the same size as the original painting. The print may be traced on to a piece of canvas or photographically reproduced thereon, and an artist then may paint on the canvas so as to produce the brush marks. varying thicknesses of paint, and other surface irregularities corresponding with those of the original painting or closely approximating the same. This painting on the canvas need not be in the colors of the original paintingand in .fact it may be done in ordinary white paint, it only being essential that the proper amount of paint be applied to'the canvas in the proper places and the ,proper brush marks produced. When the paint is dry a die or matrix is made from it as above described. It is evident that this matrix will correspond in size with thecolored print irrespective of whether the latter be larger or smaller than the original painting from which the print was made.

The colored print and the die ormatria:

print together it is of course evident thatcare should be exercised in getting the two in perfect registry so that the embossing and printing will bear the proper relationship and correspond exactly to the original painting.

The completed article will thus have a backing of actual canvas and the front surface will be an exact reproduction of the original painting not only as regards color, shading and lines, but also as regards the surface irregularities.

I have described my improved process as being one for securing exact reproductions of oil paintings, on canvas, but it is of course evident that the process may he employed for securing exact reproductions of other surfaces which vary in color or shading and vary slightly in contour.

Having thus described my invention, what I claim is:

1. The process of reproducing pictures which consists in producing on an embossable surface a photographic reproduction of the picture in its true and natural colors, applying a solution of a solid substance in a vaporizable solvent to the face of the picture, evaporating the solvent to leave a hard matrix, the face of which corresponds to the surface irregularities of the original picture, and using saidmatrix itself as a die to emboss the colored photographic reproduction.

2. The process of reproducing pictures which consists in producing on an embossable surface a photographic reproduction of the picture, applying a solution of a solid substance in a vaporizable solvent to the face of the picture, evaporating the solvent to leave a matrix, the face of which corresponds to the surface irregularities of the original picture, and using said matrix as a die to emboss the photographic reproduction.

23. The process of reproducing pictures which consists in producing on an embossalile. surface a photographic reproduction of the picture, applying a solution of cellulose acetate in tetrachlorethane and dichlorhydrin to the face of the picture, evaporating the solvent to leave a matrix, the face of which corresponds to the surface irregularities of the original picture, and using said matrix as a die to emboss the photographic reproduction.

4. The process of reproducing pictures which consists in producing a colored photographic print of a painting and on an emhossable surface, applying paint to a sheet of canvas to simulate the brush marks and the varying thicknesses of paint of the original painting, forming a die by applying a composition to the painted face of sai canvas and causing said composition to acquire a hard, solid form with one surface corresponding to the surface irregularities of the painted canvas, mounting said colored photographic reproduction on a second sheet of canvas and. embossing said colored reproduction by pressing it on to said second sheet of canvas with said die.

5. The process of reproducing pictures which consists in applying paint to a sheet of canvas to simulate the brush marks and the varying thickness of paint of the original painting, forming a die by applying a composition to the painted face of said canvas and causing said composition to acquire a hard, solid form with one face conforming to the surface irregularities of the painted canvas and removing the die from the painted canvas and pressing it on a colored photographic print of the painting to emboss the latter.

6. The process of reproducing pictures which consists in applying paint to a sheet of canvas to simulate the brush marks and the varying thickness of paint of the original painting, forming a die by applying to the painted face of the canvas a composition including a solid substance dissolved in a vaporizable solvent, evaporating the sol- HENRY PETERS.

\Vitnesses FLOREN ca Luv [EN t]. FAIRBANK.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patent! Washington, D. 0."

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